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Diode pumped passively mode-locked Yb:SSO laser with 2.3 ps duration
Jinfeng Li1, Xiaoyan Liang, Jinping He
1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O. BOX 800-211, Shanghai 201800, China.
Optics Express
|August 20, 2010
Summary
Researchers developed a diode-pumped Ytterbium-doped strontium sulfate (Yb:SSO) laser generating 2.3 ps pulses. This picosecond laser achieved 1.87 W output power and demonstrated wavelength tuning capabilities.
Area of Science:
- Laser Physics
- Solid-State Lasers
- Photonics
Background:
- Passively mode-locked lasers are crucial for generating ultrashort optical pulses.
- Ytterbium-doped materials are attractive gain media for solid-state lasers due to their broad emission spectra.
Purpose of the Study:
- To investigate the performance of a diode-pumped picosecond passively mode-locked Yb:SSO laser.
- To characterize its pulse duration, repetition rate, output power, and tuning range.
Main Methods:
- Utilized a diode-pumped Yb:SSO crystal in a passively mode-locked configuration.
- Employed a picosecond pulse generation scheme without additional dispersion compensation.
- Measured output power, pulse characteristics, and performed wavelength tuning.
Main Results:
- Achieved pulse durations as short as 2.3 picoseconds (ps) at a 53 MHz repetition rate.
- Obtained an output power of 1.87 W at 11.5 W pump power.
- Demonstrated continuous-wave (CW) operation with 3.55 W output power and 44.5% slope efficiency.
- Achieved wavelength tuning from 1034.0 nm to 1089.7 nm.
Conclusions:
- The Yb:SSO laser is a viable source for generating high-quality picosecond pulses.
- The laser exhibits efficient CW operation and broad wavelength tunability.
- This laser system holds potential for various applications requiring ultrashort and tunable laser light.
